Which of the following are elements of a valid contract?

A valid contract must include three essential elements: offer, acceptance, and consideration.

The offer is a clear proposal made by one party to enter into an agreement with specific terms. Acceptance occurs when the other party agrees to the terms of the offer, thus forming a mutual agreement. Consideration refers to something of value that is exchanged between the parties, which can be money, services, or even a promise to act or refrain from acting in a certain way. Together, these components establish a legally binding obligation and demonstrate that both parties intend to enter into the contract.

The other options include terms that do not precisely define the necessary components of a contract. The second choice, for instance, focuses on general ideas rather than the specific legal elements that constitute a contract. The third option mentions negotiation and legality, which are related but are not definitive elements of a contract itself. Lastly, the fourth option includes elements like intent and capacity, which are relevant to contract formation but do not encompass the fundamental aspects required to create a valid contract.